MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as a chemistry textbook answer key. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the primary URL. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, suggesting a link farm used for SEO manipulation to distribute malicious content. No scripts were extracted from this sample, but the presence of a malicious redirector and the link farm strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=chemistry+raymond+chang+10th+edition+answers In PDF document text
- http://files.pennjournalconlaw.com/uploads/1/3/2/6/132682694/bawibixijuzawo.pdfIn PDF document text
- http://wuzigodar.aurora-v-cinematography.com/uploads/1/3/1/8/131871787/faa4244e8dbf.pdfIn PDF document text
- http://files.upstreamlearning.org/uploads/1/3/1/3/131381553/sivif.pdfIn PDF document text
- http://files.sotomayorhomesolutions.com/uploads/1/3/1/4/131410939/fuvawo.pdfIn PDF document text
- http://derere.my-mediamatters.tech/uploads/1/3/2/6/132682787/sukezulevekekot.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8424/2325/files/20040434432.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6408/2073/files/labigowozakoruxuzo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0407/5933/files/mulitovir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/1694/8633/files/baronamirijipu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3544/3875/files/figib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3901/4562/files/bekagepolotibevidam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9220/5978/files/pavomexapomisejez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1945/2072/files/suvazatoruzodokodoxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7377/2447/files/how_to_read_the_akashic_records_linda_howe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1641/3607/files/67803022954.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0593/3730/files/26031894171.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7228/2008/files/dobusowijusezazojasala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0363/4079/files/95667015165.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F17 | 1764 bytes |
SHA-256: 44a805e8bfddfd4455c7e3580b9ac3ab5835c08009acefb55e36fba8d9d44214 |
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font_01_sfnt_off000077b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77B3 | 5612 bytes |
SHA-256: 0e905dfd0be8d82e329c2db358acaa2f7d1660601447f2618f1faae932832843 |
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font_02_sfnt_off00008ab9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AB9 | 11308 bytes |
SHA-256: 70db78dd965a4c17f42f80dd650553472899346e452b75c89a0d8f9b15a2fa4a |
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